Paul ehrlich



(No Model.)

P. EHRLIGH. MUSIC SHEET FOR MECHANICAL INSTRUMENTS.

NO. 546,133. Patented Sept. 10,1895.

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80% 69W I I M Q differ-max UNITED STATES PATENT @rrrcs.

PAUL EHRLIOH, OF GOHLIS, GERMANY.

MUSIC-'SHEET FOR MECHANICAL INSTRUMENTS.

SPECIFICATION forming part of Letters Patent No. 546,133, datedSeptember 10, 1895.

Application filed April13, 1895. Serial No. 545,623. (No model.)Patented in Germany November 8, 1892, No. 79,765; in

England May 29,1898,No. 10,518, and in Austria-HungaryAugust 1, 1893,No. 22,8 l9 and No. 38,065.

To aZZ whom it may concern.-

Be it known that 1, PAUL EHRLIoH, a subject of the King of Saxony,residing at Gohlis, near Lei psic, in the Kingdom of Saxony, GermanEmpire, have invented new and useful Improvementsin Music-Sheets forMechanical Instruments, (for which I have obtained a patent in Germany,No. 79,765, dated November 8, 1892; in Great Britain, No. 10,518, datedMay 29, 1893, and in Austria-Hungary, No. 225m and No. 38,065, datedAugust 1, 1893,) whereof the following is a specification.

This invention relates to music-sheets of circular or other shape, bymeans of which tunes are produced in mechanical musical instruments; andthe object of my invention is to overcome the objections arising fromthe wear and tear of the portions of the said music-sheets that work orstrike against the sounding devices of the instruments, and at the sametime to avoid as far as possible sharp points in the sheets in order tofacilitate packing. For this p'urposethe musicsheet is made of sheetmetal or other sufficiently strong material, and tongues correspondingto the order of the notes are punched or cut therein, so that they arestill adherent to the sheet. By then turning backward each tongue earsare formed, which, after being fixed in any suitable mannerfor instance,by solderingpresent solid projections firmly adherent to the sheet. Thetongues may be punched or cut in the sheet in any suitable manner orshape-for instance, triangular or square tongues are punched thereinsothat two adjacent tongues turned backward in opposite directions tooverlap each other form,

when soldered or otherwise secured together,

a strong stud presenting no sharp edges; or I may punch in the sheet soas to form for each projection a double tongue, one being bent backwardto form an ear and the other being bent against the upturned end of theformer, so as to secure it in place. The sheets so produced can be usedfor instruments the sounding devices of which are tongues, reeds, pipes,or any other devices to which such sheets can be applied. The inventioncan of course be employed for sheets the perforations of which allow theends of the levers of sounding devices to move for sounding, and in thiscase the solid tongues increase the durability of the-edges of theperforations.

In order that my said invention may be fully understood, I shall nowproceed more particularly to describe the same, and for that purposeshall refer to the several figures on the annexed sheet of drawings.

Figures 3, 4., and 5 of the accompanying drawings represent some of theforms of tongues, ears, or projections which may be provided on themusic-sheets, Figs. 1 and 2 referring to the mode of construction of thetongue shown in Fig. 3.

Referringnow to Figs. 1, 2, and 3 of the drawings, projections areformed by narrow strips a from the sheet, as shown in section and planin Fig. 1, so as to remain attached thereto atone end and bent out ofthe plane of the said sheet. By curling the said strip backward it formsa firm ear-shaped projection I), as shown at the left hand of Fig. 2.The inside of the strip Z), bent over as at the right hand of Fig. 2,may be filled in with solder or other like material, and also, ifdesired, strengthened in like manner at the sides, so that the whole isfirmly secured to the sheet, as shown at m m in Fig. 3, and in eithercase a strong projection, free from sharp corners, is formed.

In the arrangement shown in Fig. 4, triangular or wedge-shaped strips 01e are stamped out of the sheet, leaving spaces d c, and bent round, sothat the tapering sides of the said strips abut against one another, andthese can then be united together by soldering or the like. A stillstronger projection or car may be formed, as shown in Fig. 5, in whicharrangement rectangular tonguesf g are stamped out of the sheet, leavingspaces f g, and these tongues are bent backward in semicircular form, sothat one overlaps the other. They A music sheet of sheet-metal, havingpro- In testimony whereof I have hereunto set JGGtlODS formed by cuttingthe sheet and turnmy hand in the presence of two subscribing ing' orceiling over the cut portions, the ears Witnesses.

produced thereby being filled with solder 0r PAUL EHRLICII. 5 other likematerial and means provided, to Witnesses:

strengthen, if desired, the side corners m, RUDOLPH FRICKE,

substantially as and for the purpose specified. l OTTO DOEDERLEIN.

